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23003532431 = 112338975237
BaseRepresentation
bin10101011011000111…
…100000110010001111
32012101011012112011122
4111123013200302033
5334102401014211
614322341311155
71443022541135
oct253307406217
965334175148
1023003532431
119834992430
12455ba054bb
132227a27c69
14118316b755
158e97ab6db
hex55b1e0c8f

23003532431 has 8 divisors (see below), whose sum is σ = 25202468304. Its totient is φ = 20822547520.

The previous prime is 23003532397. The next prime is 23003532493. The reversal of 23003532431 is 13423530032.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23003532431 - 222 = 22999338127 is a prime.

It is a super-2 number, since 2×230035324312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23003532431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23003732431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4485056 + ... + 4490181.

It is an arithmetic number, because the mean of its divisors is an integer number (3150308538).

Almost surely, 223003532431 is an apocalyptic number.

23003532431 is a deficient number, since it is larger than the sum of its proper divisors (2198935873).

23003532431 is a wasteful number, since it uses less digits than its factorization.

23003532431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8975481.

The product of its (nonzero) digits is 6480, while the sum is 26.

The spelling of 23003532431 in words is "twenty-three billion, three million, five hundred thirty-two thousand, four hundred thirty-one".

Divisors: 1 11 233 2563 8975237 98727607 2091230221 23003532431